Outage in AWS

Elevated API Errors and Delayed metrics

Resolved Minor
November 20, 2020 - Started almost 5 years ago - Lasted over 1 year

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Outage Details

7:41 PM PST We are investigating increased delays for CloudWatch metrics in the US-EAST-1 Region. CloudWatch alarms may transition into "INSUFFICIENT_DATA" state if set on delayed metrics.

8:31 PM PST We continue to investigate elevated API error rates and increased delays for CloudWatch metrics in the US-EAST-1 Region. CloudWatch alarms may transition into "INSUFFICIENT_DATA" state if set on delayed metrics.

9:32 PM PST Between 7:16 PM and 9:08 PM PST, some customers experienced elevated error rates when calling CloudWatch APIs in the US-EAST-1 Region. Some metrics were delayed, and CloudWatch alarms on delayed metrics transitioned into INSUFFICIENT_DATA state. We have resolved the issue. Delayed metrics are in the process of backfilling in CloudWatch console graphs and for API retrieval. The service is operating normally.
Components affected
Amazon CloudWatch (us-east-1)

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